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Finding the Fourth Proportional to 53,281,481.20, 74,669,656.40 and 53,281,481.20

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Solution

The fourth proportional to 53,281,481.20, 74,669,656.40 and 53,281,481.20 is: 74,669,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281,481.20 : 74,669,656.40 = 53,281,481.20 : x
  2. Step 2: Convert to fraction form
    53,281,481.20/74,669,656.40 = 53,281,481.20/x
  3. Step 3: Cross multiply
    53,281,481.20x = 74,669,656.40 × 53,281,481.20
  4. Step 4: Simplify right side
    53,281,481.20x = 3,978,509,893,687,060
  5. Step 5: Solve for x
    x = 3,978,509,893,687,060/53,281,481.20
  6. Step 6: Final answer
    x = 74,669,656.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.